CA2834658A1 - Container, tube or chemical apparatus with color indicator, and composite semi-finished product with color indicator for producing a container, tube or chemical apparatus - Google Patents
Container, tube or chemical apparatus with color indicator, and composite semi-finished product with color indicator for producing a container, tube or chemical apparatus Download PDFInfo
- Publication number
- CA2834658A1 CA2834658A1 CA2834658A CA2834658A CA2834658A1 CA 2834658 A1 CA2834658 A1 CA 2834658A1 CA 2834658 A CA2834658 A CA 2834658A CA 2834658 A CA2834658 A CA 2834658A CA 2834658 A1 CA2834658 A1 CA 2834658A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- adhesion
- glass fibers
- indicator
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000126 substance Substances 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims description 20
- 239000011265 semifinished product Substances 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000012466 permeate Substances 0.000 claims abstract description 8
- 239000004753 textile Substances 0.000 claims abstract description 7
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims description 38
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 150000003624 transition metals Chemical class 0.000 claims description 3
- 150000002484 inorganic compounds Chemical class 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- -1 iron oxide Chemical class 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 2
- 230000016571 aggressive behavior Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/52—Containers specially adapted for storing or dispensing a reagent
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
The invention relates to a container, a tube or a chemical apparatus in particular for the construction of chemical apparatus for storing or for transporting aggressive storage media, with a solid inner layer on the inner side of which the storage medium can bear and which is produced from a thermoplastic resistant to the storage medium, with an adhesion-promoting layer which is mounted on the outer side of the inner layer and which consists of a textile sheet-like structure, and with a carrier layer which is mounted on the outer side of the adhesion-promoting layer and which is intended for mechanically supporting the layer structure, wherein an indicator layer is provided between the inner layer and the outer layer, wherein the material of the indicator layer is discoloured by components of the storage medium which permeate through the inner layer.
Description
'Container, tube or chemical apparatus with color indicator, and composite semi-finished product with color indicator for producing a container, tube or chemical apparatus' The invention relates to a container, tube or chemical apparatus, in particular for the construction of chemical apparatus for storing or for transporting aggressive storage media according to the preamble of claim 1.
Further, the invention relates to composite semi-finished products for producing such containers, tubes or chemical apparatus.
Generic components for the construction of chemical apparatus are known from EP 0 577 134 B1 and from US 3,723,234. The components described there have a multi-layered structure. The inner layer is formed by a thermoplastic that is resistant to the storage medium to be received.
The properties of the thermoplastic which in the generic components forms a solid inner layer can be specifically configured to be resistant to the storage medium coming into contact with the inner side. Due to their inherent structure, said thermoplastics are only insufficiently stable from a mechanical point of view, in particular at higher temperatures.
Therefore, it is envisaged that an adhesion-promoting layer with a sheet-like textile structure is applied to the outer side of the inner layer. For example, said adhesion-promoting layer can be a crocheted, woven or knitted glass fiber element with a sheet-like textile structure. The adhesion-promoting layer has the task of allowing the application of a carrier layer which supports the inner layer. By means of the adhesion-promoting layer, an adhesion between the inner layer and the outer carrier layer is realized that is strong enough for the chemically resistant inner layer to be sufficiently supported by the mechanically high-strength carrier layer.
In other words, this means that the generic components have a multi-layered structure whose solid inner layer is resistant to the respectively present chemical aggressions, such as by aggressive chemical substances, the adhesion-promoting layer providing the necessary adhesion between the inert or chemically resistant inner layer and the outer, mechanically high-strength carrier layer. As far as composite semi-finished products are concerned, said composite semi-finished products initially only comprise the chemically inert inner layer and the adhesion-promoting layer applied thereto. Said composite semi-finished products can then be completed by the respective user applying the outer carrier layer to produce the composite components according to the invention.
The known composite components of chemical apparatus construction are used in many different applications for transporting and storing chemically aggressive storage media, such as strong acids and bases. It is the property of said aggressive storage media that components of said storage media diffuse into the thermoplastic material and there cause damage to the material. Damage to the known composite components occurs in particular if the components of the storage media diffuse to the depth of the adhesion-promoting layer and there cause a delamination between the inner layer and the carrier layer. With such a delamination, the mechanical cohesion between the carrier layer and the inner layer is damaged and thus the mechanical rigidity of the respective component is severely diminished. Since diffusion of components of the storage medium into the material of the inner layer cannot be entirely precluded, the known components used to have to be regularly inspected and replaced if necessary, for which specific cycles of inspection and replacement are to be observed. These cycles of inspection and replacement presuppose standard stress levels on the material and cannot take into account the specific strain on the material caused by diffusing components of the storage media.
Tubes and semi-finished tubes in the sense of the invention shall include all composite components having a closed cross section. Fittings for producing tube connections, in particular, are tubes in the sense of the to invention.
Starting from this state of the art, it is therefore the object of the present invention to propose new composite components and composite semi-finished products for producing containers, tubes or chemical apparatus, in which the specific strain on and damage to the material caused by components of the storage medium which diffuse into said material can be recognized without difficulty in order to provide for a replacement of the respective components/parts if necessary and as needed.
This object is attained by a container, a tube or a chemical apparatus according to the teaching of claim 1. Further, the object is attained by a composite semi-finished product according to the independent claim 14.
Preferred embodiments of the invention are the subject matter of the dependent claims.
According to the invention, it is envisaged that between the inner layer and the outer layer an indicator layer is provided. The material of the indicator layer is characterized in that the components of the storage medium which have permeated the inner layer cause a color reaction in the indicator layer. In other words, this means that the indicator layer is discolored by the components of the storage medium which have penetrated the inner layer. This discoloring can then be observed through the typically transparent carrier layer or, in the case of a suitable laminate structure, through the carrier layer and thus corresponding damage can be concluded. Depending on the degree of the discoloring, a corresponding measure can be taken, in particular the replacement of the respective component.
In order to realize the principle of an indicator layer according to the invention, an additional material can be inserted between the inner layer and the carrier layer. In view of a production as inexpensive as possible, however, it is advantageous if the adhesion-promoting layer also to assumes the function of the indicator layer. In other words, this means that the material of the adhesion-promoting layer can be discolored by the components of the storage medium which permeate through the inner layer. As a result, the color reaction according to the invention takes place due to a chemical reaction between the components of the storage medium which have penetrated the inner layer and the material of the adhesion-promoting layer. In this way, additional material can be omitted, leading to significant savings in terms of work effort.
According to a preferred embodiment it is provided that the indicator layer or the adhesion-promoting layer serving as indicator layer is discolored by acid components since strong acids can cause massive damage to the composite component.
The manner in which the color reaction according to the invention between the components of the storage medium and the indicator layer or the adhesion-promoting layer serving as indicator layer is achieved is substantially optional. According to a preferred embodiment, it is envisaged that the indicator layer, respectively the adhesion-promoting layer, contains organic or inorganic compounds, in particular compounds of transition metals, such as iron oxide. Acid components permeating through the inner layer, in particular, can cause a color reaction with these compounds and thus produce the indicator effect according to the invention.
Further, it is particularly advantageous if the indicator layer or the adhesion-promoting layer serving as indicator layer is at least partially made of glass fibers. If these glass fibers contain compounds with transition metals, such as iron oxide, the glass fibers can be discolored 5 by the components permeating through the inner layer and thus cause the color reaction according to the invention. Also, adhesion-promoting layers in a hybrid form can be employed. This means that apart from the discolorable glass fibers at least one other type of fiber is used which may also tend to color-react, and together they form the adhesion-promoting layer. It is advantageous in this combination that in the case of decreasing adhesion rigidity of the discoloring glass fibers due to chemical aggression, the mechanical functionality of the unit is ensured by the additional fibers until it can be replaced.
In this context, the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer can form a woven, knitted, crocheted or other textile sheet-like structure. Textile sheet-structures of this sort made of a woven glass fiber structure, knitted glass fiber structure or crocheted glass fiber structure are particularly suitable for forming an unbreakable mechanical unit of the inner layer, the adhesion-promoting layer and the carrier layer.
The glass fiber material for forming the indicator layer or the adhesion-promoting layer serving as indicator layer should have a tensile strength of greater than 3000 MPa at room temperature. Additionally, at rising temperatures, the tensile strength of the glass fibers should be greater than the tensile strength at room temperature. Thus, it is particularly advantageous if the tensile strength of the glass fibers at about 250 C is at least 10% greater than the tensile strength of the glass fibers at room temperature.
The elastic modulus of the indicator layer or of the adhesion-promoting layer serving as indicator layer should preferably lie in the range of greater than or equal to 80 GPa.
Further, the invention relates to composite semi-finished products for producing such containers, tubes or chemical apparatus.
Generic components for the construction of chemical apparatus are known from EP 0 577 134 B1 and from US 3,723,234. The components described there have a multi-layered structure. The inner layer is formed by a thermoplastic that is resistant to the storage medium to be received.
The properties of the thermoplastic which in the generic components forms a solid inner layer can be specifically configured to be resistant to the storage medium coming into contact with the inner side. Due to their inherent structure, said thermoplastics are only insufficiently stable from a mechanical point of view, in particular at higher temperatures.
Therefore, it is envisaged that an adhesion-promoting layer with a sheet-like textile structure is applied to the outer side of the inner layer. For example, said adhesion-promoting layer can be a crocheted, woven or knitted glass fiber element with a sheet-like textile structure. The adhesion-promoting layer has the task of allowing the application of a carrier layer which supports the inner layer. By means of the adhesion-promoting layer, an adhesion between the inner layer and the outer carrier layer is realized that is strong enough for the chemically resistant inner layer to be sufficiently supported by the mechanically high-strength carrier layer.
In other words, this means that the generic components have a multi-layered structure whose solid inner layer is resistant to the respectively present chemical aggressions, such as by aggressive chemical substances, the adhesion-promoting layer providing the necessary adhesion between the inert or chemically resistant inner layer and the outer, mechanically high-strength carrier layer. As far as composite semi-finished products are concerned, said composite semi-finished products initially only comprise the chemically inert inner layer and the adhesion-promoting layer applied thereto. Said composite semi-finished products can then be completed by the respective user applying the outer carrier layer to produce the composite components according to the invention.
The known composite components of chemical apparatus construction are used in many different applications for transporting and storing chemically aggressive storage media, such as strong acids and bases. It is the property of said aggressive storage media that components of said storage media diffuse into the thermoplastic material and there cause damage to the material. Damage to the known composite components occurs in particular if the components of the storage media diffuse to the depth of the adhesion-promoting layer and there cause a delamination between the inner layer and the carrier layer. With such a delamination, the mechanical cohesion between the carrier layer and the inner layer is damaged and thus the mechanical rigidity of the respective component is severely diminished. Since diffusion of components of the storage medium into the material of the inner layer cannot be entirely precluded, the known components used to have to be regularly inspected and replaced if necessary, for which specific cycles of inspection and replacement are to be observed. These cycles of inspection and replacement presuppose standard stress levels on the material and cannot take into account the specific strain on the material caused by diffusing components of the storage media.
Tubes and semi-finished tubes in the sense of the invention shall include all composite components having a closed cross section. Fittings for producing tube connections, in particular, are tubes in the sense of the to invention.
Starting from this state of the art, it is therefore the object of the present invention to propose new composite components and composite semi-finished products for producing containers, tubes or chemical apparatus, in which the specific strain on and damage to the material caused by components of the storage medium which diffuse into said material can be recognized without difficulty in order to provide for a replacement of the respective components/parts if necessary and as needed.
This object is attained by a container, a tube or a chemical apparatus according to the teaching of claim 1. Further, the object is attained by a composite semi-finished product according to the independent claim 14.
Preferred embodiments of the invention are the subject matter of the dependent claims.
According to the invention, it is envisaged that between the inner layer and the outer layer an indicator layer is provided. The material of the indicator layer is characterized in that the components of the storage medium which have permeated the inner layer cause a color reaction in the indicator layer. In other words, this means that the indicator layer is discolored by the components of the storage medium which have penetrated the inner layer. This discoloring can then be observed through the typically transparent carrier layer or, in the case of a suitable laminate structure, through the carrier layer and thus corresponding damage can be concluded. Depending on the degree of the discoloring, a corresponding measure can be taken, in particular the replacement of the respective component.
In order to realize the principle of an indicator layer according to the invention, an additional material can be inserted between the inner layer and the carrier layer. In view of a production as inexpensive as possible, however, it is advantageous if the adhesion-promoting layer also to assumes the function of the indicator layer. In other words, this means that the material of the adhesion-promoting layer can be discolored by the components of the storage medium which permeate through the inner layer. As a result, the color reaction according to the invention takes place due to a chemical reaction between the components of the storage medium which have penetrated the inner layer and the material of the adhesion-promoting layer. In this way, additional material can be omitted, leading to significant savings in terms of work effort.
According to a preferred embodiment it is provided that the indicator layer or the adhesion-promoting layer serving as indicator layer is discolored by acid components since strong acids can cause massive damage to the composite component.
The manner in which the color reaction according to the invention between the components of the storage medium and the indicator layer or the adhesion-promoting layer serving as indicator layer is achieved is substantially optional. According to a preferred embodiment, it is envisaged that the indicator layer, respectively the adhesion-promoting layer, contains organic or inorganic compounds, in particular compounds of transition metals, such as iron oxide. Acid components permeating through the inner layer, in particular, can cause a color reaction with these compounds and thus produce the indicator effect according to the invention.
Further, it is particularly advantageous if the indicator layer or the adhesion-promoting layer serving as indicator layer is at least partially made of glass fibers. If these glass fibers contain compounds with transition metals, such as iron oxide, the glass fibers can be discolored 5 by the components permeating through the inner layer and thus cause the color reaction according to the invention. Also, adhesion-promoting layers in a hybrid form can be employed. This means that apart from the discolorable glass fibers at least one other type of fiber is used which may also tend to color-react, and together they form the adhesion-promoting layer. It is advantageous in this combination that in the case of decreasing adhesion rigidity of the discoloring glass fibers due to chemical aggression, the mechanical functionality of the unit is ensured by the additional fibers until it can be replaced.
In this context, the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer can form a woven, knitted, crocheted or other textile sheet-like structure. Textile sheet-structures of this sort made of a woven glass fiber structure, knitted glass fiber structure or crocheted glass fiber structure are particularly suitable for forming an unbreakable mechanical unit of the inner layer, the adhesion-promoting layer and the carrier layer.
The glass fiber material for forming the indicator layer or the adhesion-promoting layer serving as indicator layer should have a tensile strength of greater than 3000 MPa at room temperature. Additionally, at rising temperatures, the tensile strength of the glass fibers should be greater than the tensile strength at room temperature. Thus, it is particularly advantageous if the tensile strength of the glass fibers at about 250 C is at least 10% greater than the tensile strength of the glass fibers at room temperature.
The elastic modulus of the indicator layer or of the adhesion-promoting layer serving as indicator layer should preferably lie in the range of greater than or equal to 80 GPa.
The breaking elongation of the glass fibers should preferably lie in the range of greater than or equal to 3%.
The density of the glass fibers should preferably be in the range of greater than or equal to 2.5 g/cm3.
The softening temperature of the indicator layer or of the adhesion-promoting layer serving as indicator layer should preferably be greater than or equal to 900 C.
The melting temperature should preferably be greater than or equal to 1300 C.
According to the invention, not only composite components, namely containers, tubes or chemical apparatus comprising an indicator layer, are proposed, but also composite semi-finished products in which a corresponding indicator layer is already comprised, which can be used for producing corresponding composite components, namely containers, tubes or chemical apparatus. The composite semi-finished products are characterized in that they already comprise the chemically inert inner layer and the adhesion-promoting layer and the indicator layer. In the case that the adhesion-promoting layer itself serves as indicator layer, the composite semi-finished products according to the invention only comprise the chemically inert inner layer and the adhesion-promoting layer serving as indicator layer.
The density of the glass fibers should preferably be in the range of greater than or equal to 2.5 g/cm3.
The softening temperature of the indicator layer or of the adhesion-promoting layer serving as indicator layer should preferably be greater than or equal to 900 C.
The melting temperature should preferably be greater than or equal to 1300 C.
According to the invention, not only composite components, namely containers, tubes or chemical apparatus comprising an indicator layer, are proposed, but also composite semi-finished products in which a corresponding indicator layer is already comprised, which can be used for producing corresponding composite components, namely containers, tubes or chemical apparatus. The composite semi-finished products are characterized in that they already comprise the chemically inert inner layer and the adhesion-promoting layer and the indicator layer. In the case that the adhesion-promoting layer itself serves as indicator layer, the composite semi-finished products according to the invention only comprise the chemically inert inner layer and the adhesion-promoting layer serving as indicator layer.
Claims (14)
1 . A container, tube or chemical apparatus, in particular for the construction of chemical apparatus for storing or for transporting aggressive storage media, comprising a solid inner layer with the inner side of which the storage medium can come into contact and which is made of a thermoplastic that is resistant to the storage medium, comprising an adhesion-promoting layer applied to the outer side of the inner layer, which is made of a textile sheet-like structure, and comprising a carrier layer applied to the outer side of the adhesion-promoting layer for providing mechanical support to the layer structure, characterized in that between the inner layer and the outer layer, an indicator layer is provided, the material of the indicator layer being discolored by components of the storage medium which permeate through the inner layer.
2. The container, tube or chemical apparatus according to claim 1, characterized in that the adhesion-promoting layer serves as indicator layer and the material of the adhesion-promoting layer is discolored by components of the storage medium which permeate through the inner layer.
3. The container, tube or chemical apparatus according to claim 1 or 2, characterized in that the indicator layer or the adhesion-promoting layer serving as indicator layer is discolored by acid components which permeate through the inner layer.
4. The container, tube or chemical apparatus according to any of the claims 1 to 3, characterized in that the indicator layer or the adhesion-promoting layer serving as indicator layer comprises organic or inorganic compounds, in particular compounds of transition metals, such as iron oxide, which react with components of the storage medium which permeate through the inner layer by changing color.
5. The container, tube or chemical apparatus according to any of the claims 1 to 4, characterized in that the indicator layer or the adhesion-promoting layer serving as indicator layer is at least partially made of glass fibers, the glass fibers being discolored by the components of the storage medium which permeate through the inner layer.
6. The container, tube or chemical apparatus according to claim 5, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer form a woven or knitted or crocheted structure.
7. The container, tube or chemical apparatus according to claim 5 or 6, characterized in that at room temperature, the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have a tensile strength of greater than 3000 MPa.
8. The container, tube or chemical apparatus according to any of the claims 5 to 7, characterized in that the tensile strength of the glass fibers in the indicator layer or the tensile strength of the glass fibers in the adhesion-promoting layer serving as indicator layer increases at temperatures above room temperature, in particular that, at a temperature of 250 C, the tensile strength of the glass fibers in the indicator layer or the tensile strength of the glass fibers in the adhesion-promoting layer serving as indicator layer is at least 10% higher than the tensile strength of the glass fibers at room temperature.
9. The container, tube or chemical apparatus according to any of the claims 5 to 8, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have an elastic modulus of greater than or equal to 80 GPa.
10.The container, tube or chemical apparatus according to any of the claims 5 to 9, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have a breaking elongation of greater than or equal to 3%.
11.The container, tube or chemical apparatus according to any of the claims 5 to 10, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have a density of greater than or equal to 2.5 g/cm3.
12.The container, tube or chemical apparatus according to any of the claims 5 to 11, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have a softening temperature of greater than or equal to 900°C.
13.The container, tube or chemical apparatus according to any of the claims 5 to 12, characterized in that the glass fibers of the indicator layer or the glass fibers of the adhesion-promoting layer serving as indicator layer have a melting temperature of greater than or equal to 1300°C.
14.A composite semi-finished product for producing a container, tube or chemical apparatus, comprising a solid inner layer with the inner side of which the storage medium can come into contact and which is made of a thermoplastic that is resistant to the storage medium, comprising an adhesion-promoting layer applied to the outer side of the inner layer, which is made of a textile sheet-like structure, characterized in that on the outer side of the inner layer and/or on the adhesion-promoting layer an indicator layer is provided, the material of the indicator layer being discolored by components of the storage medium which permeate through the inner layer, wherein by applying a carrier layer, provided for mechanically supporting the layer structure, on the outer side of the adhesion-promoting layer, a container, tube or chemical apparatus according to any of the claims 1 to 14 can be formed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011075998.0 | 2011-05-17 | ||
| DE102011075998A DE102011075998B3 (en) | 2011-05-17 | 2011-05-17 | Container, tube or chemical apparatus with color indicator and composite semi-finished product with color indicator for the production of a container, tube or chemical apparatus |
| PCT/EP2012/058005 WO2012156201A1 (en) | 2011-05-17 | 2012-05-02 | Container, tube or chemical apparatus with colour indicator, and composite semi-finished product with colour indicator for producing a container, tube or chemical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2834658A1 true CA2834658A1 (en) | 2012-11-22 |
Family
ID=46085902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2834658A Abandoned CA2834658A1 (en) | 2011-05-17 | 2012-05-02 | Container, tube or chemical apparatus with color indicator, and composite semi-finished product with color indicator for producing a container, tube or chemical apparatus |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20140065031A1 (en) |
| EP (1) | EP2709841A1 (en) |
| CN (1) | CN103596752A (en) |
| BR (1) | BR112013027791A2 (en) |
| CA (1) | CA2834658A1 (en) |
| DE (1) | DE102011075998B3 (en) |
| MA (1) | MA35178B1 (en) |
| WO (1) | WO2012156201A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916490A (en) * | 2018-07-31 | 2018-11-30 | 浙江伟星新型建材股份有限公司 | A kind of chemical industry fluid conveying leakproof double-jacket tube |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723234A (en) * | 1971-04-27 | 1973-03-27 | Chapman Ind Inc | Knit reinforcing fabric and resin laminate |
| DE2854016A1 (en) * | 1978-12-14 | 1980-07-03 | Ropertz | Safety pressure hose construction - has transparent outer sleeve enclosing substance which changes colour in presence of leak |
| AT399323B (en) * | 1991-06-27 | 1995-04-25 | Leitl Beton Gmbh | TANK, ESPECIALLY SPHERICAL TANK |
| JP3144498B2 (en) * | 1991-11-29 | 2001-03-12 | 東洋紡績株式会社 | Film for metal plate lamination, laminated metal plate and metal container |
| DE59307481D1 (en) * | 1992-07-01 | 1997-11-13 | Simona Ag | Laminate |
| WO1994002772A1 (en) * | 1992-07-28 | 1994-02-03 | Doan T Duc | Leak detection for liquid hoses |
| DE19905765A1 (en) * | 1999-02-11 | 2000-08-31 | Riedel De Haen Gmbh | Multi-layer device for storing and transporting chemicals |
| DE10252867A1 (en) * | 2002-11-12 | 2004-06-03 | Silco-Tec Verfugungs Gmbh | Leakage monitoring bottom for a container holding a medium comprises lower and upper barrier layers, and a layer which is located between these layers and is monitorable for possible leakages |
| US7368153B2 (en) * | 2002-12-06 | 2008-05-06 | Cryovac, Inc. | Oxygen detection system for a rigid container |
| US7253002B2 (en) * | 2003-11-03 | 2007-08-07 | Advanced Technology Materials, Inc. | Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same |
| JP4744890B2 (en) * | 2005-02-07 | 2011-08-10 | 共同印刷株式会社 | Packaging bag |
| JP2006256653A (en) * | 2005-03-17 | 2006-09-28 | Nihon Tetra Pak Kk | Food packaging container |
-
2011
- 2011-05-17 DE DE102011075998A patent/DE102011075998B3/en not_active Expired - Fee Related
-
2012
- 2012-05-02 WO PCT/EP2012/058005 patent/WO2012156201A1/en active Application Filing
- 2012-05-02 CA CA2834658A patent/CA2834658A1/en not_active Abandoned
- 2012-05-02 CN CN201280023744.4A patent/CN103596752A/en active Pending
- 2012-05-02 US US14/116,667 patent/US20140065031A1/en not_active Abandoned
- 2012-05-02 BR BR112013027791A patent/BR112013027791A2/en not_active IP Right Cessation
- 2012-05-02 EP EP12721443.5A patent/EP2709841A1/en not_active Withdrawn
-
2013
- 2013-12-12 MA MA36556A patent/MA35178B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012156201A1 (en) | 2012-11-22 |
| MA35178B1 (en) | 2014-06-02 |
| EP2709841A1 (en) | 2014-03-26 |
| DE102011075998B3 (en) | 2012-11-15 |
| BR112013027791A2 (en) | 2017-01-10 |
| US20140065031A1 (en) | 2014-03-06 |
| CN103596752A (en) | 2014-02-19 |
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| Date | Code | Title | Description |
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| FZDE | Discontinued |
Effective date: 20170502 |